Best Betta Fish Heater: Ensuring Optimal Comfort for Your Beloved Fish

🐠 【For Fish Tank 5-15 gallon】50W aquarium heater, voltage AC110-120V 60HZ, power cord is 4.6ft. Heater rod length is 5 inch, mini compact heater for small fish tank use. Perfect for betta tank. A very compact heater, easy to hide in the tank

🐠【Automatic Stop & Restart】Effectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2℉ below the set temp.The indicator light on the controller will be on red when it's heating, will be off when it stop heating

🐠【With Built-in Thermometer】you can set the the temp from 68℉ to 90℉,temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer

🐠【Durable Quartz Glass】this aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more

🐠【Fully Submersible】this fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow

🐠【Compact Small Heater】110-120V/60HZ oval shape design little aquarium heater, fast heating for small fish tank. 50W tank heater is for 1-6.5gallon, 100W tank heater is for 6.5-13 gallon. Heater Dimension: 2.7x1.4x 4.5 inch. The power cord is 5ft, long enough for use indoors. With 2 strong suction cups at the back side of the betta heater, it's easy to install it on to glass, acrylic or plastic tank

🐠【External Controller】easy to set the temp on the controller, only show farenheit temp, you can set the temp range from 63℉ to 94℉, temp accuracy 1℉. Every time you set the temp, just press the button over and over until it reaches to your desired temp, then stop and wait the digit flashing for 3 times, then setting is done. Keep the controller away from water, it's not waterproof

🐠【Digital Display】with led display on the midle of the heater front side, when the fish tank heater is heating, there indicator light above the digit is on red, when it stop heating, the light is off. The heater with a built-in thermometer, when temp setting is done, the led will show the water temp all the time. The led will display the set temp digit only when you press the controller

🐠【Reliable Thermostat】this an automatic aquarium thermostat, after finishing the temp setting, you can be confidence on that it will maintain the tank water at the temp you set. The tank heater will stop heating when the water temp reaches to set temp, it will restart to heating when the water temp is 1℉ off the set temp. If the water temp is over 95℉, the heater will auto shut off and led displaying HH, it will work normally again when the water temp is lower than 95℉

🐠【Shut off When Out of Water】please note that this a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of the heater is out of water it will auto shut off and the led displaying E1, when fully in water again it will return to normal work again

【50 Watt Aquarium Heater】This fish tank heater is suitable for 5-15 gallons tanks. Voltage 110-120V. Power cord length is 4ft. With 2 strong suction cups, it's easy to install it on glass, acrylic and plastic tank. Great for freshwater and saltwater aquariums.

【Adjustable Temperature】Just turn the knob on top of the tank heater and you can easily get the temperature you want (From 64℉ to 93℉). The fish heater comes with a submersible thermometer, so it's convenient to check or adjust the temperature in real-time.

【Automatic Constant Temperature】With the intelligent temperature control system, it can make us keep fish more easily. No need to worry about overheating situation. When the water temperature is lower than the set value, the heater starts heating and the indicator light is on. When the water temperature reaches the set temperature, the heater stops heating and the indicator light goes off to keep the constant temperature.

【Sturdy and Durable】FREESEA submersible heaters are made of 2mm thickened quartz glass material, which is resistant to breakage, corrosion and abrasion. With high temperature resistant nichrome wire, the water heats up faster and longer service life.

【Satisfaction guaranteed】Our aquarium heaters are made with durability and safety in mind for each design. If you have any questions, please feel free to contact us! We will gladly offer a prompt, courteous refund or a new replacement. 12 Month Warranty and 24 Hours Professional After-sales Service.

★【Betta Heater】This Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank.

★【Quick and Easy Installation】:Vertical or horizontal placement using, Aquarium heater automatic temperature control 78℉, no need to adjust temperature, easy to operate, fishes happy.

★【How it Works】: Plug in, red light turns on, the heater will start working until water temperature up to 78°F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78°F. Accuracy：±3°F

★【Note】: Do not operate or leave product plugged in when your water tank is out of water, heater should be fully submerged into water. Please install a water pump or filter to help water circulating while heating.

★【SATISFACTION GUARANTEED】Our Aquarium Heater is built with durability in mind and safety for every design. In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.

【25W Aquarium Heater】Orlushy 25w fish tank heater can be applicable to 1-6 gallons tank. It is 4.7 inches in length, ideal for use in low water level and won’t take up mech place, easy to hide in small tank. Please fully submerged the heater vertically into water in fish tank, and horizontally into water in turtle tanks.

【Easy to Operate 】This aquarium heater is automatic constant temperature heating when the power is switched on. The preset temperature is 78℉. Accuracy is ±3℉. Stair shape heating that red light is on and heater starts to intermittently heat the water to the preset temp, saving energy and electricity. When green light is on, heater stops working and maintains constantly 78℉.

【Durable & Material】 The durable material of the heater ensures safe operation. The outer shell covering the whole body of the heater is made of heat-resistant ABS material that it won’t deform and melt under high temperature. The heating rod is made of nickel-chromium heating wire to faster heating rate, and non-corrosive quartz glass.

【Cautions】 1.Please ensure the heater is 100% submerged into the water before plug in the power. 2. Please unplug the power and cool down the heater for 10-20 minutes before taking it out to clean the fish tanks or change the water.

【Guaranteed Customer Service】 Orlushy fish tank heater is made with great safety and durability for use. We guarantee 1 -Year warranty. If there is any issue with our product, please contact us, and we would gladly offer you after-sales service.

SUPER MINI SIZE – This small aquarium heater is “thumb size” - only 1.97” (5cm) in length. Great for nano tanks / betta tanks. The innovative super mini size perfectly solves the headache of the fish keepers on the traditional heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F, for up to 1 Gallon tanks.

5V/2A USB POWER SUPPLY – This 5V/2A USB power supply is very safe. You are away from the worry of electric shock to your beloved fish! Use a 5V/2A power adapter, or a 5V/2A power bank to supply power to the heater. (Power adapter or power bank is not included)

ACCURATE TEMPERATURE – Thanks to the intelligent inverter technology, with the in-built chips this thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate.

OVERHEATING PROTECTION – Full consideration of safety. This fish tank heater will stop working when the water temperature exceeds 97F. You are free from “cooking fish”! MEMORY FUNCTION – The last setting is stored in the thermostat. In case of a power cut, when the power recovers the heater will follow the last setting.

MULTIPLE USES – This heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work for turtles, pet fountains, and plant seedling.

Tetras Thrive When Right Temperature Is Provided --- Neon tetras, in their native Amazon habitat, live in a temperature range between 70°F to 81°F. This ensures their optimal comfort and metabolic efficiency. Any temperature below 70°F will cause your tetras to enter a state of minimal activity and they will be stressed and miserable. Make sure they are at their optimal health and performance with this heater.

Automatically Reaches The Preset Temperature --- The smart SunGrow heater for freshwater fish has a built-in electronic thermostat to automatically maintain water around 75°F which is ideal for most tropical fish. It saves you from the trouble of constantly keeping a check on the temperature of your tank. It will automatically shut down when it reaches the desired temperature, no manual adjustment is needed.

Fully Submersible Water Heater --- This 10-watt aquarium heater supports 1.5 gallons (5 liters) fish tank. Its exterior is designed tougher than glass and the sealed polymer can be submerged into your tank. The heating element is surrounded by thick plastic to ensure the protection of your fish.

Creates The Ideal Conditions For Flora And Fauna — Neon tetras from the character family are basically tropical freshwater fish. They need warmer water to live in. This heater will create the ideal conditions for them. The warm water will keep them calm and happy and make their metabolic process efficient. A few preconditions are required to allow it to run with maximum efficiency. The heater must be completely submerged in the water and the indoor temperature should be around 62-75°Fahrenheit.

Suction Cups Included For Easy Installation ---- Easily install the SunGrow Heater vertically or horizontally by using the built-in suction cups to attach to your tank. The best location to place the heater is in the stream of a powerhead or near the water flow, such as the outlet (or inlet) from the filter. This way the heat is evenly distributed throughout your tank.

SUPER MINI SIZE – This small aquarium heater is “thumb size” - only 1.97” (5cm) in length. Great for nano tanks / betta tanks. The innovative super mini size perfectly solves the headache of the fish keepers on the traditional heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F, for up to 1 Gallon tanks.

SAFE VOLTAGE 5V/2A USB POWER SUPPLY – This 5V/2A USB power supply is very safe. You are TOTALLY away from the worry of electric shock to your beloved fish! Use a 5V/2A power adapter, or a 5V/2A power bank to supply power to the heater. (Power adapter or power bank is not included)

ACCURATE TEMPERATURE – Thanks to the intelligent inverter technology, with the in-built chips this thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate.

OVERHEATING PROTECTION – Full consideration of safety. This fish tank heater will stop working when the water temperature exceeds 97F. You are free from “cooking fish”! MEMORY FUNCTION – The last setting is stored in the thermostat. In case of a power cut, when the power recovers the heater will follow the last setting.

MULTIPLE USES – This heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work for turtles, pet fountains, and plant seedling.

★【25 Watt Heater】： This Aquarium heater is suitable for 1 to 5 gallons aquariums, Length - 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.

★【Temperature range】: 63°F~95°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.

★【Intelligent temperature control】： Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic safety shut-off feature, and overheating protection.

★【Note】: 1. Aquarium heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 2. Heater rod is suitable for people over 16 years of age. Children or minors should be under adult guidance or supervision.

★【SATISFACTION GUARANTEED】： Gain the confidence to go hard with us! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.

The Slim heater will increase the water temperature of mini aquariums up to 10 gallons by a few degrees compared to the ambient room temperature. The Slim heater can be used in glass, acrylic, plastic fish bowls and aquariums. Safe to use under gravel. Please note, Slim heaters are not suitable to be used in environments without water

Extra small slim heater is a great choice for Betta fish & suitable for fish tanks 1 to 2 1/2 gallons, measures 3" x 0.25" , 4 watt; Plug and Play universal fish tank heater; No temperature to set; slim heater provides warmth for betta fish without taking up much room.

Heater can easily be placed submerged in water or even under the tank gravel; The 90 degree angle makes this great for Betta acquariums; Safe to use in glass, plastic and acrylic fish tanks

Plug & play universal fish tank heater, the slim fish tank heater can be used in both fresh or saltwater environments

Easy to hide fish tank heater is ideal to use for betta fish, gold fish and glow fish